Can you fo to jail if you have a capias warrant but have a different court case?

If i understand your question correctly, you have a court coming up and you have a warrant for a different offence. If the court is aware the answer is yes. The court has the right to not act on it also depending what the offence is. Since you have a court date coming up I would imagine you have an attorney. Make sure he is aware of this. I f you don't have an attorney I would get one now. Its 50/50 wheather they will serve the warrant or not, I have seen it go both ways.